Finding the Fourth Proportional to 9,111.60, 12,581.46 and 5,759.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,111.60 : 12,581.46 = 5,759.82 : x
2. Step 2: Convert to fraction form
   9,111.60/12,581.46 = 5,759.82/x
3. Step 3: Cross multiply
   9,111.60x = 12,581.46 × 5,759.82
4. Step 4: Simplify right side
   9,111.60x = 72,466,944.94
5. Step 5: Solve for x
   x = 72,466,944.94/9,111.60
6. Step 6: Final answer
   x = 7,953.26